My big question would be what I plan to use it for. I’ve had a 60gallon-150psi upright like those found in local stores, probably China origin for around 30 years. I’ve run impact guns, paint guns, etc for years. A commercial compressor like that would be way overkill for my use, the upside being it would never have to work very hard and should outlast me and my kids.
Now that you’ve mentioned maintenance I started thinking, I’ve changed the oil maybe 2-3 times in 30 years and truth to be told it gets the condensate drained a couple times a year. It’s a wonder the tank hasn’t rusted through, good thing I don’t treat my bike like my tools.
It is a great find though and a very expensive compressor to replace.